Mount making apparatus



April 19, 1960 A. E. PAKISH ETAL 2,932,877

MOUNT MAKING APPARATUS h 1 m n Y ,M Z Ce e .m a g n p n m 0 Pa 0 m .BE u s n A s eY PCA vn e n mt .m 1 d e t h nF T Filed March 26, 1953 April 19, 1960 A. E. PAKISH ETAL MOUNT MAKING APPARATUS 6 Sheets-Sheet 2 Filed March 26, 1953 P KI 1 l MW Us K w P A v/ m a r m? A 5 Walt er L anger, M

Their Attorney April 19, 1960 A. E. PAKISH ETAL MOUNT MAKING APPARATUS ma m mfi m a 9 aw hn en mi m K 6 eV/KP. v C

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t nFM A V V/ b Filed March 26, 1953 Their Attonney April 19, 1960 p s ETAL 2,932,877

MOUNT MAKING APPARATUS Filed March 26. 1953 6 Sheets-Sheet 4 229 3 II Inventors:

Anthony E. PaKish,

Fr-anr A Pencn, Walter Langer,

Their Attorney 6 Sheets-Sheet 5 April 19, 1960 Filed March 26. 1953 In a 5 1 MM M% W I9 5 7 QVV/ m. w M w m p a n 13 e n u o fi un mpm n m I H 4 I, E m .I\! Q U a W I in am m A t W H.W| .H H. IQ 11 f e Y P n n w? .m r .n a e nFW T A April 1960 A. E. PAKISH ETAL 2,932,877

MOUNT MAKING APPARATUS 6 Sheets-Sheet 6 Filed March 26. 1953 .mw/u e s mnw n Ppen P w n m AH AM W n en o .m r n a i h a e HFWMT A V V/ United States Patent MOUNT MAKING APPARATUS Anthony E. Pakish, Cleveland Heights, Frank A. Penca, Lyndhurst, and Walter Langer, South Euclid, Ohio, assignors to General Electric Company, a corporation of New York Application March 26, 1953, Serial No. 344,784

22 Claims. (Cl. 29-252) Our invention relates to automatic apparatus for manufacturing filament mounts for incandescent lamps and more particularly to automatic apparatus for bending and mounting leads at positions to hold a filament at a specific relation to a reflector of an incandescent lamp.

Certain types of incandescent lamps have an integral reflector for directing light in a specific pattern and must therefore be manufactured in a manner whereby a light producing filament is positioned accurately at a definite relation to the reflector. The filament is mounted upon end portions of formed leads and has been difficult to arrange at the proper position because of the difliculty of bending said leads to a desired form with the proper degree of accuracy. Specific methods and apparatus have been devised for the specific purpose of eliminating such difliculties. The prior inventions disclosed in US. Patents 2,317,031, C. A. Cotman et al., and patent application Serial No. 141,435 to J. O. Geissbuhler, now Patent No. 2,824,356, granted February 25, 1958, both assigned to the assignee of this present invention, have, for instance, attained the required accuracy in the arrangement of the filament by manufacturing lamps by a distinct sequence of operations. These operations first provide for the filament support leads to be bent to shape and then, while corresponding end portions of said leads are held at the proper interrelation, provide for opposite end portions of said leads to be attached to a reflector section of a lamp. The prescribed manner of operation causes variations'in the form of the leads and in the envelope to be of no consequence in that the filament holding end portions are maintained exactly at the relation desired while the opposite ends of said leads are attached to the reflector section at whatever relation they maintain at such times.

One object of our invention is to provide automatically operated apparatus of a particularly practical nature for attaching the leads of an incandescent lamp toa reflector section of a lamp according to method and apparatus disclosed in the Cotman patent and the Geissbuhler ap lication herebefore referred to. The present apparatus provides for the automatic arrangement of preformed leads of the mount at the relation they must assume to properly hold the filaments of a lamp and the automatic transfer of said leads, while they are maintained at said relation, to mounting relation to metal lead-in members on the reflector section of a lamp. Further operations provide for the permanent attachment of the leads to the lead-in members at the positions they assume during their period of arrangement.

In one particular application of our invention, apparatus is provided for presenting a group of four preformed leads of a lamp at an operative station of combination positioning and transferring means and at approximately the positions maintained in the lamp. 'The leads are presented at the operative station with corresponding so-called inner end portions at approximately the relatively close interrelation required to support filaments and the opposite so-called outer end portions at approximately the widely separated relation of metal lead-in 2,932,877 Patented Apr. 19, 19,60,

thirnbles of a lamp envelope. The relatively closely at ranged inner end portions of the leads are accurately arranged by the gripping action of the positioning and transferring means and are retained at said arrangement during a succeeding interval during which said position ing and transferring means carries them to an accurate relation to the reflecting surface of a section of the lamp envelope. The widely spaced outer end portions of the leads are repositioned only slightly by the relatively limited rearrangement of the opposite inner end portions thereof effected by the positioning and transferring means and do not pass beyond the confines of the hollow interior of the thirnbles of the reflector section of the envelope. Brazing'material, in the form of a fluid pool within the interior of the thirnbles at the time of the transfer, fixes the leads to said thirnbles at whatever position they are arranged therein.

Another object of our invention is to provide automatically operated apparatus for supplying a fluid lead mounting material to the metal lead-in thirnbles on the reflector section of a lamp, of effecting the accurate ar.- rangement and transfer of preformed leads to mounting relation to the reflector section and the thimbles thereof and, finally, the attachment of said leads to said thirnbles by causing the lead material to congeal. A further aspect of this object is to provide for the rapid and economical performance of the supplying, transferring and attaching operations and to provide high production apparatus for producing mounts by said operations. To this end, apparatus is provided whereby a number of reflector sections are in the course of manufacture at the same time and are being continuously advanced through a progression of steps comprising the supplying, transferring and attaching operations.

Another object of our invention is to provide for the preformed leads to be presented to the mounting apparatus by movable apparatus synchronized with the operation of mounting apparatus and in association with means for accomplishing the bending operations required to preform the leads.

Further objects of our invention are to provide for the feeding and heating of a fusible lead mounting material in the thirnbles of the reflector section, the feeding and preforming of the leads of a mount, the accurate rearrangement and transfer of said leads to mounting relation to the reflector section and the thirnbles thereof and causing the fusible lead mounting material to congeal so as to fasten the leads in place. The lamp manufacturing steps covered by these objects represent those steps required to effect the completely automatic mountingof a group of leads at an accurately determined position within the reflector section of a lamp.

To summarize, and as particularly related to the manufacture of the reflector type incandescent lamp, an object of our invention is to provide apparatus for bending the leads of the lamp as accurately as possible to a form suited to hold a pair of filaments at a definite relation to the reflector of said lamp and for thereafter attaching said leads to metal lead-in thirnbles associated with the reflector at whatever position said leads may lie while the filament receiving portions are accurately positioned with respect to said reflector. As pointed out in the Cotman et al. Patent 2,317,031 hereinbefore referred to, the mounting of preformed leads is of advantage since variations in the bending operatings relative to the preforming of the leads is not controllable to the extent desired because of stiffness and other not readily controllable conditions in the leads. The apparatus provided in the manufacture of the reflector type lamp comprises a main rotatable turret having heads adjacent the periphery thereof for advancing reflector sections of lamps to a succession of work stations and a second auxiliary turret having leads adapted to retain groups of preformed leads and having an arrangement to advance said leads to an overlapping position abovethe main turret and a head at one work station thereabout. Other means associated with the head of the main turret pick up the lead group a during the interval said heads are in operative relation to each other and, at a subsequently taken work station, lower said lead group into mounting relation to metal lead-in thimbles on the reflector section of the lamp.

Means are also provided at the work stations about the main turret for feeding fusible material into the lead-in thimbles and for heating and otherwise treating said thimbles to cause the fusible material to be melted and then congealed about the leads to cause them to be attached to the thimbles. Other means located at work stations about the auxiliary turret and in association therewith provide for the insertion of straight leads into the heads of said turret and the bending of said leads intoproper form and interrelation.

Still other objects and advantages of our invention will appear from the following description of a species thereof and from the drawing.

In the drawing, I

Fig. 1 is a plan view of a machine for automatically bending leads to a proper form to support a pair of filaments of a reflector type lamp and for automatically mounting said preformed leads at an accurate relation to the reflector section of said lamp, said view being modified by having approximately one half of the main work holding turret thereof broken away to show the underlying platform and Work means.

Fig. 2 is a vertical section through the main work holding turret and adjacent machine portions on a vertical plane through station D and showing a side elevation of the mechanism for feeding pellets of brazing material in combination therewith.

Fig. 3 is a perspective view of the reflector holder and centering ring of each head of the machine.

Fig 4 is a partially exploded perspective view of the escapement means of the brazing pellet feeding mechamsm.

Fig. 5 is a perspective view of the brazing pellet guide tubes and lead holding means of one of the heads of the main turret, said view having an essentially pie shaped segment broken from the forward edge thereof.

, Fig. 6 is an essentially vertical sectionthrough the heads of the main and the auxiliary turrets at the overlapping positions they assume at station G about the main turret.

. Fig. 7 is a vertical section through a center portion of a reflector with the thimble heating burners associated therewith at several of the work stations of the main turret shown in section and elevation.

Fig. 8 is a vertical section through the lead feeding device at station I: of the auxiliary turret, said section :being taken along line 8-8 through the approximate center of the device and showing said device at the start of its cycle of operation and the transfer arm in dot-dash lines at the delivery position with relation to a head on said turret.

Fig. 9 is a front elevation of the lead feeding device.

Fig. 10 is a perspective view of one of the heads of the auxiliary turret.

Fig. 11 is a side elevation developed from a section through the auxiliary turret along the dot-dash line 11--11 of Fig. 1 and shows the operating cylinder at station c in the course of actuating the lead bending means of the head on said turret.

Fig. 12 is a side elevation of the second operating cylinder for the lead bending means at the extent of its motion in operating the intermediate lead bender of. said means during the arrangement of the head at station a.

Fig. 13 is a perspective view of the preheating burners at the moment of their arrangement at operative relation to the leads of a head at station H.

Fig. 14 is a side elevation of the portion of the track segment and control means associated with the head at station I.

Fig. 15 is a side elevation of the thimble cooling and cleaning burners at their operative position with relation to the thimbles of a reflector located at station L.

Fig. 16 is a side elevation of one of the exhaust tube cooling airmanifolds located at stations M and N.

The machine disclosed in the drawing performs functions required in the manufacture of a mount for a lightprojector (sealed beam) type incandescent lamp used in automobiles and is so constructed .as to perform these mount making functions during the intervals the vitreous reflector 1, comprising one portion of the envelope of a lamp of this kind, is arranged in one of the sixteen heads 2 about the periphery of the turret 3. The mount is manufactured at a central point within the concave upper face of the reflector 1 during the step-by-step movements of the heads 2 around the machine, which movements are caused by counter-clockwise indexing motions of the turret 3 carrying each of the heads 2 in succession to a corresponding number of work stations, A to I, inclusive, thereabout. The cycle of operation is initiated during the period the heads 2 are located at the work stations A and B and is first concerned with the loading or" a reflector 1 in the heads 2. The reflector 1 is introduced into the open center of the essentially ring shaped holder 4 (Fig.

'2) of the'head 2 in 'a manner to fix it and the three metal lead-in thimbles 5' extending from the convex face thereof at specific positions in the head 2.

Succeeding steps in the cycle of operation occur when other indexing motions of the turret 3 advance the reflector 1 to station C, where the movable upper portion 6 of the head 2 is moved down into said reflector 1 to cause said reflector 1 to be more accurately located in the holder 4, and then carries said reflector l'to station D, where pellets of brazing material are'dropped into the thimbles 5 by the automatically operated feeding mechanism 7 located adjacent thereto. At station E, the next in order around the periphery of the turret 3, the upper head portion 6 is lifted again to a position some distance above thereflector 1, so that a horizontal space is clear between said upper head portion 6 and the reflector 1, and the thimbles 5 are heated by burners 8 '(Fig. 6) which are lifted to operative relation to "the leads from a head 11' of the auxiliary turret 12 extending between said movable upper head portion 6 and the holder 4 of the lower head portion. This latter function of the machine is of primary importance to the operation thereof in that the transfer means 9 is so constructed so as to definitely fix the extending or normally free ends 1J3 of the leads of the group 10 at the proper interrelation and through said engagement is adapted to accurately fix the position thereof at proper relation to the reflector 1. The proper interrelation of the lead ends is the position they must assume to hold a light producing filament at an accurately determined relation to the light reflecting surface of the concave face of the reflector 1 and must be controlled within close limits to provide a satisfactory light projector type of lamp. It is not to be understood that the transfer means could not be constructed in the manner disclosed in I. O. Geissbuhlers application'Serial No. 141,435 hereinbefore. referred to and therefore be adopted to retain a group of leads on which one or'more filaments have already been mounted thereon.

The preformed leads presented to the transfer means 9 at station G of the main turret 1 are products of manufacture of portions of t e machine located about the auxiliary turret 12 and are brought to said station by the properly timed counterclockwise indexing movements of said turret 12 which advance a head 11 containing a group 10 of leads for a single reflector each time a head 2 and, correspondingly, another transfer means 9 is presented at station G. The portions of the machine located about the auxiliary turret 12, which portions represent only one of the combinations of mount making apparatus usable therewith, occupy only a few of the available stations about said turret 12 and have to do first with the introduction of the leads into head 11 at stations a and b. The portions of the machine are so constructed that two of the four leads making up the group 10 mounted in a single reflector 1 are fed into the head 11 at station a by the automatic lead feeding means 14. At station b, the next station around the turret 12, the other two leads of the group 10 are fed into the head 11 by the essentially duplicate lead feeding means 15. Further movements of the auxiliary turret 12 advance the heads 1.1 to station c and then to station d where the air cylinders 16 and 17, respectively, cause the lead bending means in combination with the heads 11 to bend the upwardly extending ends thereof nearer together and as near as possible to the proper positions to hold light producing filaments of a lamp. This operation is the final operation occurring around the auxiliary turret 12 until said turret 12 advances the heads 11 to a position between the reflector holder 4 of the main turret 3 and the transfer means 9 thereof.

As previously established, the group 10 of the leads are picked up and retained by the transfer means 9 during the operative period at station G and will be accordingly advanced with the head 2 on the main turret 3 during the further course of operations of the machine. This advance of the turret 3 carries the lower ends of the group it of leads into the flames from a burner 18 (Fig. 13) permanently located at station H so as to preheat them and permits another set of burners 8 to heat the thimbles 5' on the reflector 1 to such an extent that the brazing pellets therein are melted. The next index in the head 2 causes the upper portion 6 thereof to be lowered so that the lower ends of the group of leads are carried down into the open top of the reflector 1 and then through openings about the center thereof and into the molten pools of brazing material inthe thimbles 5 at station 1. Another set of burners is also located at this station I; however, the present set is operated with flames only large enough to keep the brazing material in a fluid state in the thimbles 5. At station I, the gripping function of the transfer means 9 is relaxed to allow the leads to settle into the molten brazing material and another set of burners 8 is provided to retard the cooling of said brazing material and the thimblcs 5. The gripping action of the transfer means 9 is applied again during the courseof the motion of the head 2 to station K so that the group 10 of leads are positively fixed in position as the brazing material gradually congeals under the only moderate heat from still another set of burners 8. At station L, cooling of the thimbles 5 is retarded only slightly by the reducing flames from the burners 19, which flames clean the oxide from the ends of the thimbles 5 in preparation to their soldered attachment to terminal pieces (not shown). At stations M and N, the exhaust tube 29 at the center of the reflector 1 is cooled by streams of air emitted from openings in respective manifolds 21. The leads are also released by the transfer means 9 at station N and the upper portion 6 of the head, in part comprised thereof, is raised to a position clear of the reflector 1. Stations 0 and P are unloading stations at which the now complete reflector 1 and lead assembly are removed from the machine.

Now referring to the details of the operation of the machine shown in the drawing and particularly to the step of loading the reflector 1 into the head 2 of the main turret 3. At the moment the reflector 1 is placed in the estate machine, the upper portion 6 and transfer means 9 of the head 2 are at an elevated position some distance above the holder 4 as shown in Fig. 6 and sufficient clearance is present to allow the reflector 1 to be inserted therebetween and rested upon the holder 4. The reflector 1 is, at such times, arranged with the open parabolic face uppermost and with the opposite convex face having the three metal lead-in thimbles 5 and the vitreous exhaust tube 20 at the center thereof lowermost and must be moved so that said exhaust tube 20 is carried through the open end of the essentially ring shaped holder 4 and so that rim portions of said reflector 1 are seated upon the holder 4. The reflector 1 must also be orientated so that protuberances or bosses 23 (Fig. 3) at three unequally spaced points about the rim thereof and common to reflectors of this type slide in between the shoulders 24 of the three pads 25 on the holder 4 and the locating protuberances or bosses 26 on opposite sides of said orientating protuberances or bosses 23 rest upon said shoulders 24. This loading operation is the first step relating to the arrangement of the reflector 1 at a position where the parabolic inner reflecting surface and the thimbles 5 are at specific positions in said head 2 and locates said reflector 1 in the machine in that the holder 4 rests upon an outer peripheral portion of the turret 3 which, in turn, has a fixed position upon the center column 27 of said machine. A portion of the frame 28 of the machine underlies the entire turret 3 and a major portion of the holder 4 and through its engagement with the center column 27 and the ball bearing 29 is the basis of support for the entire assembly. V

Further steps in the cycle of the operation of the machine do not occur until the head 2 and the reflector 1 are advanced by the indexing movements, an operation which is performed by the timed rotation of a spider 30 on the lower end of the center column 27 under the control of a cam 31 on the main drive shaft 32. During normal operative periods of the machine, a uniformly shaped portion 31 of the cam 31 is located between a pair of rollers 33 at the periphery of the spider 30 with the result that the turret 3 is held at positions fixing the heads 2 definitely at the work stations. The indexing interval occurs when the rotation of the main drive shaft 32 turns the curved channel portion 34 into engagement with one of the rollers 33 and advances it sufiiciently to bring an adjacent pair of rollers 33 into position to be engaged by the uniform cam portion 31'. Accordingly, an index of the turret 3 occurs once in each revolution of the main drive shaft 32 and the time interval of one revolution of said drive shaft 32 represents the interval taken by the operations occurring at any one station about the machine.

The index of the head 2 beyond the loading stations A and B initiates the first automatic operation of the cycle of operation of the machine by causing the upper head portion 6 to be lowered so that the balls on the ends of three legs 35 at equidistant positions about the center ing ring 36 press against the sharply sloping sides of the concave face of the reflector 1 and because of said pressure shift said reflector 1 to the center of the head 2.

The upper head portion 6, which mounts the centering 1 ring 36 upon a bracket 37 slidable upon the column 38 and post 39, has been held at a raised position above the holder 4 by the presence of a high portion of a track 40 located upon the frame 28 opposite stations A and B and is caused to move down by a gradual reduction in the thickness of track 40 between stations B and C. A cross 6 does not occur and the roller 43 does not rest upon the low portion of the track 40 while the head 2 is located r station C and the immediately following stations inasmuch as the legs on the locating ring 36 seat firmly against and press upon the reflector 1. The low portion of the track 40 will, however, be in engagement with the roller 43 and support the upper head portion 6 if a reflector 1 is not present in the head 2. The column 38 and the post 39 are fixed members attached to the holder 4 and keep the centering ring 36 in exact alignment in the head 2 at all periods of operation of the machine. The holder 4, the centering ring 36 and the other portions of the head 2 appear as shown in Fig. 2 when said head 2 reaches station C, an idle station in the present instance, and continue to remain in this position during the subsequent indexing motion which carries it to station D, the particular station appearing in said Fig. 2. I

At station D, a compositive cylindrically shaped pellet 45 of brazing material and flux is dropped into each of the three thimbles 5 of the reflector 1 simultaneously by the automatic operation of the feeding mechanism 7. The feeding mechanism 7 which is, for the most part, located above and beyond the periphery of the turret 3 is arranged to discharge said pellets 45 into a like number of guide tubes 46 in combination with the upper portion 6 of the head 2. The pellets 45 are fed under control of escapement means 47 associated with a commercial feeding device 48 when a reflector 1 is detected by the switch 49 located below the head 2 and are directed through respective feed tubes 50 to the guide tubes 46 which register with the lower ends thereof while the head 2 is at station D. Operative means associated with the main drive shaft 32 initiates the cycle of operation of the pellet feeding mechanism 7 by raising the platform 51 located below the head 2 to such an extent that the actuating arm 52 of the totally enclosed switch 49 mounted upon an arm 53 extending therefrom contacts and is depressed by the reflector 1. Conversely, the motion of the platform 51 brings actuating arm 52 into an open space in the head 2 if a reflector 1 is not in place therein and the switch 49 is not operated during the interval the empty head 2 is located at station D. The effect of the operation of the switch 49 is to cause a movable gate 54 located opposite the discharge ends of three parallel feed channels 55 about the inside walls of the bowl 73 of the feeding device 48 to turn about the axis of the shaft 56 so that the pellets 45 advanced beyond the ends of the feed channels 55 and into. the three pockets 57 in the gate 54 are carried up into alignment with the receiving ends of the feed tubes 50. The switch 49 brings about motion in the gate 54 by connecting a source (not shown) of electrical current tothe solenoid 58 which, in turn, shifts the core 59 of the valve 60 to a position to reverse the air and vent connections-to the air motor 61 connected to the gate actuating shaft 56. As shown in Fig. 4, the gate 54 is attached to an end of the shaft 56 extending beyond the body 62 of the air motor 61 and is under the control of a vane 63 also on said shaft 56 and located within a chamber within the body 62. The pressure of air conducted from a pipe source 64 ad jacent the valve 60 and through the space about an intermediate portion 65 of the core 59 and the pipe 66 to the lower portion of the air motor 61 causes the vane 63 to be normally held in the upper portion of the valve body 62 so that the gate 54 is positioned with the pockets 57 opposite the feed channels 55. The opposite side of the vane 63 is vented at such times through the pipe 67, a space about a' second portion 68 of the core 59 of the valve 60, anda passageway 69 through the length of said core 59 to the atmosphere. Reversing of the connections to the air motor 61 occurs when the core 59 is moved against the expansion force o f a helical spring 70 located between the end of the valve body and nuts 71 upon the end of the core 59 and air is conducted from pipe 64 to pipe 67 and pipe 66 is vented through thespace about the portion 72 of said core 59 and the passageway 69 therein.

The timing of the operation of the pellet escapement means 47 is such that the gate 54 is in position to receive the most advanced pellets 45 of a supply being constantly jogged along the feed channels 55 around the bowl 73 of the feeding device 48 during the index period of the head 2. The feeding device'48, on the other hand, has an uninterrupted cycle of operation thereof and by the force of vibratory movements about its center separates the loose unorientated supply of pellets 45 in the bowl 73 into three separate courses traveling upward in three parallel inclined channels 55 around the inside wall of said bowl 73 to the gate 54. Only the single pellet 45 at the end of each channel 55 passes into the pocket 57 in the gate 54 inasmuch as the opposite face of the gate 54 is against the cover plate 74 and inasmuchas the. pockets 57 have a depth approximately equal to the size of the pellets 45. The feeding interval of the escapement means 47, as occurs with the movement of the gate 54, advances the pockets 57 to positions aligned with the ends of the feed tubes 50 where the pressure of air jets emitted from openings 75 in the cap 76 on the branch pipe 77 of the air source represented by pipe 64 blows thepellets 45 from said pockets 57 and into the open ends of the feed tubes 50; The motion of the gate 54 also advances a trailing portion thereof into a blocking position opposite the ends of the channels '55 so that succeeding pellets 45 therein cannot be advanced therebeyond. The pellets 45 received by the feed tubes 50 travel rapidly therethrough and through the guide tubes 46 in registry with the shoe 78 at the lower ends of said feed tubes 50 under the forces *of gravity and the air currents produced by the air jets and drop through openings 79 in the reflector 1 to the in terior of respective thimbles 5. Positive assurance of the proper disposition of the pellets 45 is provided by the guide tubes 46, which are mounted in passages in the body 80 of the transfer means 9 which is, in turn, fastened directly to the upper portion 6 of the head 2 and therefore movable to and from a position inside the reflector 1 by motions thereof. Further assurance of the proper passage of the pellets 45 to the guide tubes 46 is provided by movable upper sections 81 (Fig. 5) on said I tubes 46, which sections 81 are urged upward by the helical springs 82 about mid-portions thereof so as to seat against the shoe 78 and make a reasonably air-tight connection therebetween. The upper tube sections 81 normally project above the body 80 to the extent that the collars 83 at the lower ends thereof bear against the stop screws 84 held by said body 80 and, in passing to station D with the head 2, are forced down somewhat 1 in passing under the lower surface of the shoe 78.

Further operation of the machine occurs after the turret 3 indexes the head 2 to station E, the next in order. At station E, the upper head portion 6 is again raised to an elevated position completely clear of the reflector 1 by the upward motion of a movable segment 85 (Fig. 2) of the cam 40 under the impetus of the rotation of a portion of a cam 86 on the main drive shaft 32. The shape of the cam 86 is such that it lifts the free end of an operating lever 87 extending beyond the stationary pivot shaft 88 and through the interconnected couplings 89 and the push rod 90 raises the cam segment 85 sufficiently to impart the proper lift to the push rod 42 associated with the upper head portion 6. A roller 91 on the side'of an intermediate portion of the operating lever 87 projects into a channel in the face cam 86 and causes the operating lever 87 to have a position determined by the vertical position of the portions of the channel as said cam 86 is rotated. The push rod 90 operates in a guide 92 in that portion of the frame 28 of the machine below the head 2 at station E and is raised from a position where its flat upper end is continuous with the cam 40' to a position where. said end i continuous with the higher segment 40' of said cam 40 along the further course of movement of the head 2.

The upward motion of the upper head portion 6 is primarily for the purpose of raising said portion to a position where it will clear the heads 11 on the auxiliary turret 12 swinging over the reflector 1 at subsequent stations, however, said upward motion is also used to prepare the transferring means 9 associated with said upper head portion 6 for operation with said head 11 by causing the operating lever 93 of said means 9 to srtike the stationary stop screw 94 (Fig. l) and be pushed down. The operating lever 93 is turned about a pivot pin 95 (Fig. in an opposite end portion from the roller 96 which engages the stop screw 94 and is shifted inasmuch as said stop screw 94 is held by a stationary arm 97 extending from the frame portion 98 supporting the pellet feeding device 48.

Still another operation takes place at station E, the operation being the elevation of a group of three burners 8 on a further extent of the platform 51 located below the reflector 1, to a position about and in heating relation (Fig. 7) to the lower ends of the three thimbles 5 of said reflector 1. The burners 8, which are of the ring type disclosed in Thompson Patent 2,53l,015, dated January 16, 1951, and assigned to the assignee of the present invention, direct flames inwardly toward a center passageway 100 therethrough from a slit 101 between upper end portions of inner and outer sleeves 102 and 103, respectively, and are moved sulficiently 'to arrange the smaller lower end portions 104 of the thimbles 5 in said passageway 100 at'a position to be impinged upon by said flames. Sealed chambers 105 between the inner and outer sleeves 1112 and 103, respectively, distribute the combustible gas mixture fed to the burners 8 by the pipes 106 and flexible hose (not shown) leading from the source (also not shown). The lower ends of the inner sleeves 102, which form the main body of the burners 5, mount them in openings in a block 107 attached to the upper surface of the platform 51 and in combination with openings in said platform 51 form the center passageways 100 which vent said burners 8 in a downward as well as an upward direction.

The vertical motion induced in the burners 8 at station E by movement of the support platform 51 is the motion of other burners 8 and 19 located at the seven succeeding stations about the turret 3 on a still further extending portion of said platform 51 and is produced by essentially duplicate supporting and operating means 108 below the ends and a mid-portion of said platform 51 at positions adjacent the opposite end portions of the drive shaft 32 and a cam shaft 109 along the front of the machine. Each supporting and operating means 108, as illustrated by the particular means 108 shown in Fig. 6 and engaging the mid-portion of the platform 51 and the end of the drive shaft 32 between stations F and G, holds said platform 51 on a bracket 110 extending from the upper end of a vertically movable rod 111 andpositions said platform 51 at an elevation determined by the shape of the cam 112 in engagement with the roller 113 on the yoke 114 on the lower end of said rod 111. A bearing 115 attached to the edge of the frame 28 serves to fix the position of the rod 111 with respect to the center of rotation of the turret 3, whereas, a channel in the face of cam 112 fixes the position of the roller 113 and accordingly the vertical position of said rod 111 at all times. The other supporting and operating means 108 associated with the platform 51 operate in the same manner inasmuch as one is operated by a portion of the drive shaft 32 below an end portion of the platform 51 adjacent stations K and L and inasmuch as the other is operated by a portion of the cam shaft 109 below an end of the platform 51 adjacent station D. The cam shaft 109 has the same rate of rotation as the drive shaft 32 in that both shafts 109 and 32 are coupled together by driving means comprised of, the chain 116 and the 10 sprockets 117 and 118 indicated in dot-dash lines in Fig. 1.

The next step in the cycle of operation of the machine occurs with the index of the head 2 and the reflector l tostation F. At this station, the function of the machine is to heat the thimbles 5 on the reflector 1 still further, an operation which is performed by another group (not shown) of burners 8 lifted to operative relation to said thimbles 5 by movements of a portion of the platform 51 adjacent said station F. No other operation is performed at this station.

The operations taking place at station G (Figs. 1 and 6), the next in the order of movement of the: head 2, again provide for the further heating of the thirnbles 5 by another set of burners 8 upon the platform 51 and, in addition, provide for a group 10 of leads to be picked up by the transfer means 9 in association with the upper head portion 6. The group 10 of leads are presented at a position over the reflector 1 by one of the heads 11 at the periphery of the auxiliary turret 12 and constituteihe product of the portions of the machine which are located at stations thereabout. The turret 12 is mounted for movement about a vertical axis radially outward from station G and is arranged so that the circle of movement of the heads 11 thereon overlaps the course of movement of the heads 2 on the main turret 3 in a manner to bring one of said heads 11 below and into alignment with the transfer means 9 of the head 2 at station G. The arrangement of the head 11 of the auxiliary turret 12 at operative relation to the transfer means 9 coincides with the advance of the head 2 to station G and is effected by a counterclockwise indexing movement of the turret 12 produced by means in engagement with the auxiliary drive shaft 120 which is coupled to the main drive shaft 32 by the chain 121 and the sprockets 122 and 123. The auxiliary drive shaft 120 turns a drum type carn 124 in engagement with the rollers 125 (Figs. 1 and 6) at the periphery of a spider 126 flaring downward and outward from a central boss of the auxiliary turret 12 and is located within bearings (not shown) in the fixed frame portion 127 which supports a center column 128 about which said turret 12 and the spider 126 are turned. At the time of the index of the auxiliary turret 12, the cam 124 is turned so that a uniformly shaped portion 129 is advanced from between two of the rollers 125 at the periphery of the spider 126 and so that the channel portion 130 traps and then advances one of said rollers 125 to the position of the adjacent roller 125.

The counterclockwise index created in the auxiliary turret 12 advances the heads 11 thereof to the transfer station, the station representing the operative position of said heads 11 adjacent station G, after said heads 11 have passed in succession through other work stations about the auxiliary turret 12 and the group 10 of leads have been progressively assembled and reworked in said heads 11 by apparatus associated with said stations. For convenience the description of the invention will now, be transferred to the first operative station about the auxiliary turret 12.

The first operations in the cycle associated with the auxiliary turret 12 are feeding operations having to do with the feeding of pairs of wire leads to each of the heads 11 at stations a and b by the essentially duplicate feeding devices 14 and 15. The leads of each pair are taken from the two hoppers 131 and 131 in association with the devices 14 and 15 by the transfer arm 132 and are inserted end foremost in specific openings in the upper surface of a die 133 (Figs. 8 and 10) at approximately the center of the base plate 134 of the head 11 by the move-- ments of the transfer arm 132. The feeding devices 14 and 15 are arranged obliquely with respect to the periphery of the turret 12 at positions which allow the transfer arms 132 to pass freely between the openings in the die 133 and are each adjusted so that a lead will be v held at each side of the transfer arms 132 at positions to enter a specific opening in the die 133 during the movements of said transfer arms 132. The adjustment of the feeding devices 14 and 15 is such that the leads 135 and 136 (Figs. 8 and nearest the periphery of the turret 12 and on opposite sides of the fall of the transfer arm- 132 are fed by the device 14 and the leads 137 and 138 further in from said periphery and also on respgtive sides of said fall are fed by the device 15. The details of the operation of the feeding devices 14 and as applied to the feeding device 15 shown in Figs. 8 and 9 provide for the leads 137 and 138 to be picked up from the laterally extending lips 139 of the hoppers 131' and 131 by the nozzles 140 and 141 on end portions of the transfer arm 132. The particular leads 137 and 138 picked up from the hoppers 131' and 13 1 have been separated out from the main supply thereof within the main portions of said hoppers 131 and 131 in the course of their passage under the force of gravity therethrough and as shown in combination with lead 138 and hopper 131 carries them around the end of the partition 142 and thence along the channel way 143 to the lip 139; The main portion of the leads 138 lie in parallel relation within the main portion of the hopper 131 and are gradually worked into the single file they must attain on the lip 139 by settling through the opening beyond the end of the partition 142 and into the channelway 143in the base thereof. An agitator 144 swinging back and forth over the course of movement of the lowermost run of the leads 138 within the channelway 143 sweeps back those leads 138 that crowd around the entrance of the narrow portion of the channelway 143 on the lip 139 and-assist in causing the steady movement of said leads 138 onto said lip 139.

The hoppers 131 and 131', which are mounted upon separate carriages 145 floating upon vertical guide rods 146 at opposite sides thereof, lie at positions below the nozzles 141 and 140 of the transfer arm 132 at the start of the cycle of operation and initiate said cycle by being moved upward to the extent that the single lead 138 and 137 at end of the channelways in the lips 139 are carried against the ends of said nozzles 141 and 140. This function-of the hoppers 131 and 131 moves them from positions Where the carriages 145 rest upon the head ends of studs 148 on the brackets 149 and 149 which, in turn, are. attached to the frame 150 of the device 15 and occurs against the contraction resistance of helical springs 151 extending between posts in the carriages 145 and the brackets 149 and 149 at positions adjacent the guide rods 146. At this particular time, the hoppers 131 and 131' have the motion of a vertical operating rod 152 located in vertical slide ways in the frame 150 in that the extent of the upward motion of said rod 152 causes the cross pin 153 in the cross head 154 to seat against the lower end of a vertical slot 155 in the head end of said rod 152 and in that the studs 156 in the substantially oppositely extending arms of the cross head 154 bear against and force the carriages 145 upward. The described operation, as well as the majority of the other operations of the lead feeding device 15, are taken from particular portions of the vertical movements of the operating rod 152 and are to a great extent controlled by the timing and length of said movement which are introduced therein from the operating lever 157 in accordance with the particular part of the cam 158 in engagement withthe roller 159 thereon. The operating lever .157 is mounted upon a lay shaft 160 in a portion of the frame 127 below the auxiliary turret 12 at a position opposite the drive shaft 120 associated with said auxiliary turret 12 and is' connected to the lower end of the operating rod 152 by means of the link 161 and the yoke 162. A helical spring 163 extending between the operating lever 157 and a stationary mountingtnot shown) below the machine causes said lever 157 to be tilted so that the roller 159 bears against the earn 158 at all times.

Following the operative arrangement of the hoppers 131 and 131' and the nozzles 141 and 140, the leads 138 and 137 opposite the mouths of the latter are pulled I2 tightly thereagainst'and held by the forceof'suction created by the connection of a line source of vacuum thereto under the control of a valve 164 adjacent the auxiliarydrive shaft 120. The timed actuationof. the valve 164 by the cam. 165 on the drive shaft causes the vacuum of the pipe 166 leading to the source (not shown) thereof to be connected through sections of stiff and flexible pipe, in part shown at 167, to branches 168 of the two tubes 169 and 170 making up the transfer arm 132 and causes said vacuum to be conducted through the. length of said tubes 169 and 170, the flexible hose 171 and the length of said nozzles and 141 to the months thereof. The opposite ends of the tubes 169 and 170 from the flexible hose 171 are closed and are retained in a block 172 which mounts the entire transfer arm 132 through its engagement with the pin 173 on the bracket 174 at the upper end of a vertical support slide 175. The nozzles: 140 and 141, in turn, are mounted in collars 176 attached to opposite sides of a block 177 upon the extending ends of the tubes 169 and 170 and, like the hoppers 131' and 131 are held at elevations suited to the proper placement of the leads 137 and 138 by movement of the transfer arm 132. Immediately after the leads 137 and 138 are gripped by the nozzles 140 and 141 the hoppers 131' and 131 again drop totheir former lower positions and in so doing cause said leads 137 and 138 to be carried out the open tops of the passageways 143 in the lips 139 thereof and be separated completely therefrom. A return downward movement in the operating rod 152 and the cross head 154 under control of the operating means produces the present movement of the hoppers 131 and 131. During the lowering movement, the leads 137 and 138 within the hoppers 131' and 131 are shifted about by movement of the agitators 144 away from the narrow end of the passageways 143, said movement being produced by a rotation of the pins 178 supporting said. agitators 144 and occurring when the rollers 179 on the arms 180 on the outer end of said pins 178 engage and are pushed up by the relative movement of the upper end of the guide rods 146. The return movement of the agitators 144 occurs during the upward motion of the hoppers 131 and 131' previously described when the helical spring 181, connecting the arms 180 and carriages 145, are free to contract.

Next in the order of operation of the lead feeding device 15 is an outward and downward swing of the transfer arm 132 thereof which carries the leads 137 and 138 first, to positions over the head 11 and then end first down into 7 the respective openings in the die 133. The swinging movement of the transfer arm 132 results from a downward motion of the vertical support slide 175 therefore within the ways of the frame of the device 15 and.

occurs when the downward motion of the operating rod 152 carries sideward projecting ears 182 on the yoke 162 at the lower end of said operating rod 152 against the spring posts 183 on the lower end of said support slide.

tinued motion in the cross head 154 and the hoppers 131' and 131 in that said cross head 154 almost immediately seats upon the top end of the frame 150 of the device 15 and in that the slot in the operating rod 152 accommodates the pin 153 of the cross head 154 during the further motion. springs 151 hold the hoppers 131 and 131 at such times at the lowered position wherein the supporting carriages 145 rest upon the studs 148. The lead transfer arm 132 and the operating slide are moved from a position determined by the seating of the head end of a screw 184 on an ear extending from the lower end of the support slide 175 with the lower end of the frame 150 of the device and were maintained at this position by the upward pull on said support slide 175 by relatively long helical springs 185 extending between the posts 183 therein-and other posts 186 in an intermediate portion of the operat The contraction force of the helical ing rod 152. Vertically extending slots 187 in opposite sides of the frame 150 of the device 15 provide clearance for the spring posts 186 and prevent them from interferring with the movements of the operating rod 152. The contraction force of the springs 185 also keeps the support slide 175 biased so that the spring posts 183 are against the ears 182 on the yoke 162 during the presently referred to downward movement of said support slide 175.

In this latter period of operation, the lead transfer arm 132 is caused to swing out to a position over the head 11 of the turret 12 since the resulting downward movement of the block 172, representing the present end of said arm 132, advances the roller 188 on a laterally extending boss thereof from the offset upper end of a track 1 89 in a plate cam 190 on the side of the frame 150 to a portion of said track 189 in line with the pivot pin 173. A straight portion of the track 189 along the still further path of movement of the block 172 keeps the transfer arm 132 in the swung-out position during the further downward motion of the support slide 175 so that the nozzles 140 and 1 41 direct the leads 137 and 138 into the specific openings in.the die 133 of the head 11. The release of the leads 137 and 138 by the transfer arm 132 now occurs and is the result of the actuation of valve 164 under the control of the cam 165 on the auxiliary drive shaft 120 and the connection of a low pressure air line 191 to the nozzles 140 and 141 in the place of the vacuum line 166. This action completes the feeding and transferring functions of the lead feeding device 15 which represents the operations taking place at station b of the auxiliary turret 12 and is immediately followed by the upward and inward swing of the transfer arm 132 thereof under impetus of a corresponding upward motion of the support slide 175 and the operating rod 152 which return all parts of the device 15 to the positions they maintained at the start of the cycle of operation. The return of the transfer arm 132 removes all portions of the lead feeding device 15 from the path traversed by the parts of the head 11 and the leads 135, 136, 137 and 138 during the index of the auxiliary turret 12 and is performed in preparation for the next occurring index thereof.

The index of the turret 12 which advances the head 11 to stations, the next station in the course of said head 11, carries said head 11 to a position below the air cylinder 16 (Figs. 1 and 11) and in so doing arranges the lead bending means in the said head 11 in operative relation to oppositely arranged plungers 192 and 1193 on a downwardly displaced disc 194 associated with said air cylinder 16. The function of the operations occurring at station is to cause intermediate portions of the lead 135 (Fig. located at one side of the grouping held by the die 133 of the head 11 and the leads 136 and 137 located at the opposite side of said grouping to be bent so that extending ends 13 (Fig. 6) thereof are offset to positions closer together and are arranged at approximately the proper position they must maintain when mounted in the reflector 1. The leads 135, 136 and 137 (Fig. 10) project substantially equal distances from openings in the upper surface of the die 133 at the start of the bending operation and in the course thereof are laid over against the top surface of said die 133 and into vertical grooves in the upstanding center portion or island 195 of said die 133. The lead bending operation and the bending means associated with the head 11 correspond to the like operation and means disclosed and claimed in patent application Serial No. 141,435 by J. 0. Geissbuhler, now Patent No. 2,824,356/gran'ted February 25, 1958, and assigned to the assigneeof'this present invention. The bends are made in respective instances by the rotational movement of die blocks 196 and 197, which in effect lay the immediately projecting portion of said leads 135 and 136-437 down upon the top surface of the die 133 while further extending portions of said leads 135 and 136137 strike the upstanding center portion 195 of the die 133 and are bent back and upwardly thereby. Both die blocks 196 and 197 are eccentrically mounted upon essentially opposed ends of corresponding journals 198 retained by the bearing blocks 199 on the bed plate 134 of the head 11 and have a rolling motion about the axis of the journal 198 which almost coincides with the lower corner of the faces of the gauge blocks 196 and 197 adjacent the leads 135 and 136-137, respectively. The bending operation is also assisted by the guiding effect of vertical grooves 200 in the cooperating faces of the upstanding die portion 195, which in the instance of the face opposite the die block 197 is offset at 201 to cause the lead 137 to be bent to a position offset from lead 136. A recess 202 in the cooperating face of the die block 197 matches the offset 201 in die portion 195. The movement of the die blocks 196 and 197 occurs when the lower ends of the plungers 192 and 193 at diametrically opposite positions on the disc 194 of the air cylinder 16 strike the rollers 203 on the operating arms 204 on midportions of the journals 198 and force said arms 204 downward until movement is blocked by the arrangement of said die block 196 and 197 and the leads 135 and 136-137 against the adjoining surfaces of the top and upstanding portions 195 of the die 133. At the limit of motion, the disc 194 slides downward on the plungers 192 and 193 and compresses the helical springs 205 about the lower portions thereof and the upper end portion of the remaining straight lead 138 still retained by the head 11 passes into a clearance opening 206 in the disc 194. The relatively great pressure against the head 11 at such times is prevented from efiFecting the displacement thereof since the bed plate 134 of said head 11 is given the added support of a roller 207 on a bracket 208 attached to the frame 127.

The air cylinder 16 is mounted upon a portion of the bracket 208 extending upward beyond the periphery of the turret 12 and is timed in its operation by the application of compressed air to the area above the piston 289 under the control of a valve (not shown) actuated by a cam (also not shown) on the auxiliary drive shaft 120. During the downward stroke of the piston 209, piston rod 210 and the disc 194, air is admitted through pipe 211 and vented through pipe 212; Whereas, the upward return stroke of these parts is produced when the valve (not shown) causes air to be admitted through pipe 212 and vented to the atmosphere through pipe 211. A guide rod 213 attached to the disc 194 and sliding longitudinally in a well in adjunct 214 of the air cylinder 16 keeps the disc 194 and the plungers'192 and 193 from turning out of alignment with the bending means on the head 11. After the disc 194 and plungers 192 and 193 have been raised to complete the course of operation of the air cylinder, the bending blocks 196 and 197 automatically return to their first position under the unwinding tendencies of the torsion springs 215 located about the journals 198 and expanding against portions of the hearing blocks 199 and the pivot pins 216 for the rollers 203 on the operating arms 204. The preferred manner of operating the apparatus provides a repeat operation of the air cylinder 16 and the bending blocks 196 and 197 in the cycle occurring during the interval the head 11 is located at station 0.

The next occurring index carries the head 11 to station a and operative relation to a second air cylinder 17 (Figs. 1 and 12 which effects the bending of the fourth lead 138 of the group retained thereby. The air cylinder 17 is mounted upon a bracket 217 (only partially shown) extending out and around the turret 12 from a portion of the frame 127 in the manner of the air cylinder 16 and is adapted to effect movement of the die block 218 through its arrangement over the operating arm 284 for the journal 198 supporting said die block 218. The operating plunger 219, in the present instance, is the lower portion of a connecting rod 220 extending to a piston 221 within the air cylinder 17 and efifects a rolling motion in the die block 218, corresponding to that taken by the other bending blocks 196 and 197, by its engagement with the roller 203 on the arm 204. The timed interval of operation of the cylinder 17 also agrees with that of cylinder 16 inasmuch as branches of the combination air supply and vent pipes 211 and 212 associated with the latter cylinder 16 are also connected to the cylinder 17. The lead bending operation performed by the cylinder 17 and. the bending means associated with the head 11 are the only operations taking place at station d and when come plete' find the head 11 holding the four properly bent leads 135, 136, 137 and 138 at approximately the position they must maintain when finally mounted in the reflector 1 of a lamp.

The immediately following work station beyond sta tion d and a succession of stations thereafter in the course of the counterclockwise rotation of the turret are idle stations in the present combination shown and it is not until the head 11 is indexed to the transfer station aligned with station G about the main turret 3 that further operations are performed. It is intended that all operations effecting the shape of the leads 135, 136, '137 and 138 occur prior to their arrangement at station G in that the functions of the apparatus at said station and their further course of movement about the main turret 3 provide for the upper ends 13 of the leads 135, 136, 137 and 138 to be accurately positioned and the lower ends thereof to be brazed to the thirnbles 5 at whatever position they are located at such times. This manner of operation compensates for any variation in the form of the' leads 135, 136, 137 and 138 resulting from variations in the bending operations hereinbefore described and can be referred to as the preformed lead type of lamp manufacture. t

The accurate arrangement of the group of leads 135, 136, 137 and 138 occurs at station G in the course of the operation of the head 2 associated with the main turret 3 when the transfer means 9 in combination with the upper head portion 6 is caused to engage the upper high track segment 40' (Fig. 2) to the correspondingly positioned movable track segment 224. The initiation of the operation of this apparatus, however, produces a downward movement of the upper head portion 6'brought about by a downward movement of the track segment 224 under the control of the rotation of the cam 225 on the main drive shaft 32 with respect to a roller 226 on a yoke 227 at the lower end of a push rod 228 supporting the track segment 224. The rotation of the cam 225 at the described moment advances a portion of the track 229 in the face of the cam 225 into engagement with the roller 226 which portion is so placed with respect to the drive shaft 32 as to cause said roller 226 and the interconnected yoke 227, push rod 228 and track segment 224 to be lowered and, in so doing, lowers the upper head portion 6 sufiiciently to cause the upper ends 13 of the lead group 10 to pass into separate openings 'in' the head end 230 of the transfer means 9. i

The downward movement is terminated when the upper ends 13 of the lead group 10 have passed into the head end 230 of the transfer means 9 to the extent to be opposite the ends of four jaws 231 (Fig. '5) located'within a transverse cavity 232 in the body 80 of said transfer means 9. While at this position the transfer means is prepared to lift the lead group 10 from the head 12 in the upward return motion thereof by a closing movement of the jaws 231 which are pivoted upon a common pin 233 extending across the cavity 232 and which are caused to grip the upper ends 13 of the lead, group 10 between their 'lower'ends' and the faces of shoulders 234 and 235 projecting into'said cavity 232. The motion of the jaws 23 1 is initiatedunderth'e control of actuating means 236 (Fig, 6) in part located below the extending end of the operating lever 93' on the upper portion of the transfer means at this station G and at the present moment effectingian upward movement of said extending end of said operating lever 93 so as to remove a wedging opposite portion 237 thereof from behind the upper end of the intermediate operating lever 238. these conditions, the pressure of the intermediate operating lever 238 against the upper ends of the jaws 231 is relaxed and the constant pressure of hair pin springs 239 (only one shown completely) against the opposite sides of the upper end portions turns the jaws 231 and said intermediate operating arm 238, the latter about the pin 240 in projecting bosses from the body 80. Each jaw 231 is under the constant pressure of the short leg of a hair pin type spring 239 which is mounted through the presence of its longer leg within an opening in one of the shoulders 234' or 235 and which is held in place in said shoulders 234 and 235 by a set screw 241 therein. The pressure of the springs 239 has heretofore been made inefiective by the pressure of the intermediate operating lever. 238 inasmuch as said intermediate operating lever 238 is then tilted thereagainst by the arrangement of athick wedging portion 237 of the operating arm 93 behind the roller 242 on the upper end of said intermediate operating lever 238. A fiat (not shown) on the thick" wedging portion 237 of the operating arm 93 courses the intermediate operating arm 238 to remain at aposition to restrict the movement of the jaws 231 until said oper-' ating arm 238 is forceably repositioned by the actuating means 236. A roller 243 upon the wedging portion 237 of the operating lever 93 prevents said portion 237 from being displaced laterally since said roller 243 rides against the face of a stationary plate 244 attached to the body of the transfer means. i

The jaw operating functions of the'actuating means- 236 are the result of the timed upward movement .of a finger 245 (Fig. 6) against the roller 96 on the extending end of the operating arm 93 of the transfer means, which is then at a lower position than it appears in Fig. 6,.and occur under the control of the valving ofv compressedair to the air cylinder 246 of said operating means 236 by the timed rotation of a cam'(not shown) on the auxiliary drive shaft in the manner of cam (Fig8). The finger 245 is moved about the pin 247 inthe arm 248 pro-. jecting from the stationary center column 128 of the. auxiliary turret 12 by the outward movement of the PiS, ton rod 249 of the air cylinder 246 which is also mounted upon said arm 248. A link 250 connects the piston rod- 249 to a depending arm 251 of the finger 245 which is immediately returned to its lower position by the follow-- ing return movement of said piston rod 249 underthe impetus of the air cylinder 246. The pressure with which the upper ends 13'of the lead group 10. is gripped is sufficient to maintain said group 10 in place in the trans fer means 9 and, during the upward movement thereof which follows when the upper head portion 6 is again raised by a corresponding motion of the track segment 224, keeps said lead group '10 from being pulled from the transfer means 9 while the lower ends of the lead group '10 are pulled from the openings in the bending die 133 of the head 11. 'At the conclusion of the above operation, the apparatus appears as shown in Fig. 6 with Under 17 I 10 by a burner 18 (Fig. 13) on the end of a pipe 252 extending between the upper head portion 6 and the reflector holder 4., The burners 8,. in the present instance,

eifect the melting of the brazing pellets 45 in the thimbles 5, with the result that a pool of brazing material is contained in the lower end 134 (Fig. 7) of said thimbles when the head 2 is advanced from station H. The burner 18 is located along the vertical center of the head 2 at a position to allow the lower ends of each of the leads 135, 136, 137 and 13S making up the lead group to pass thereabout during the index and. prepares said ends for the brazing operation by directing heating flames thereagainst. A pipe 252 extending from a mounting on the frame 28 beyond the course of movement of the parts of the head conducts gas and air from a supply (not shown) to said burner 18 which ejects burning gases from appropriately aimed vertical slits 253 in the sides thereof. During the index of the head 2 to station H and while said head 2 is at this station, the upper head portion 6 continues to remain at an elevated position since the roller 43 (Fig. 6) on the support rod 4-2 rides upon the relatively high edge of the track segment 254.

The next occurring indexing movement of the head 2 which advances it completely clear of the periphery of the auxiliary turret 12, arranges it at station I and in the course of said movement causes the upper head portion 6 to be lowered so that the lower ends of the lead group 10 are carried into the molten brazing material within the thimbles 5. This vertical motion of the upper head portion 6 results as the roller 43 on the support rod 42 is advanced over the declining portion of the track segment 254 (Fig. 14) and the portion 2550f said segment at low elevation. A thorough wetting of the ends of the lead group 10 and the brazing material occurs at station I inasmuch as the brazing material is maintained in a molten state by the heat of still another setjof burners 8 located upon the platform 51 at this station. The presently referred to burners 8 are operated at somewhat reduced gas pressures in order to prevent excessive heating of the thimbles 5 and the brazing material.

Associated with station I are safety means for interrupting the operation of the machine should the downward movement of the upper head portion 6 be incomplete, as for instance when one or more of the leads 135, 136, 137 and'138 are out of place or bent so that it does not pass into the smaller lower end portions 104 of the thimbles 5. In such instances, the roller 43 on the support rod 42 for the upper head portion 6 does not move down to the extent to bear against the lateral projection 256 on an arm 256 adjacent the track segment 255 and does not force said arm 256 to lower position where it trips the switch 257 in an interlock circuit (not shown) connected to a control circuit to the driving motor (not shown) for the main drive shaft 32. A spring 258 below the end of the arm 256, which is pivoted upon a pin 259 projecting from the side of the track segment 255, keeps said arm 256 tilted upward away from the control button 260 of the switch 257 until it is pressed down in the normal advance of the roller 43 to station I. These conditions cause the switch 257 to complete the interlock circuit therethrough so that the control circuit to the driving motor ismaintained. The safety means is also adapted to discover any improper arrangement of the reflector 1, as is caused by either a height or orientation variation thereof, and will also discover if more than one thimble 5 is inadvertently 18 51 at this station have the effect of retarding the cooling of the thimbles 5 and the brazing material and are therefore operated at reduced gas pressure from that at the early heating stations. The jaws 231 are relaxed by the downward movement effected in the extending end of the operating lever 93 of the transfer means passage of said end below the downwardly sloping edge of a stationary cam 261 at the periphery of the turret 3. The edge of the cam 261 which is mounted upon a bracket 262 extending from the frame 23 of the machine, slopes only sufficiently to force a portion of the wedging portion 237 of the operating lever93 behind the intermediate operating lever 238 and accordingly does not lock the intermediate operating lever 238 and the jaws 231 at the full open position. In any case however, the operating lever 93 is again returned to the upper position and the jaws 231 again grip the lead group 10 when the head 2 is indexed from station I as the operating lever 93 will then pass over the upward sloping edge of a second cam 263 on the bracket 262 and will be forced upward thereby.

' of cleaning the ends 104 and the adjacent portions of the stacked at any of the three locations about the center thimbles 5 of oxide and of cooling said thimbles 5 to a condition where they will not oxidize. The burners 19 are first carried up to a position where the very soft reducing flames of burning hydrogen emitted from the mouth of the central passageway 264 therein surround the lower ends 10 4 and the adjacent shoulders of the thimbles 5 and are then moved upward still further to the positions shown where the conical walls'of the said mouths of said passageways 264 seat against said shoulders. The first upward movement of the burners 19', which arranges them at positions to effect the reduction of the oxide on the thimbles 5 is brought about by corresponding movements of the burner platform 51, which functions as a guide for the hollow stems 265 thereof, and supplemental actuating means engaging the thumb nuts 266 on the lower ends of the burner stems 265 through the arm 267. The relative position of the burner platform 51 and the arm 267 of the supplemental actuatingmeans is such that the thumb screws 266 are caused to seat firmly against the arm 267 by thecompression maintained in the helical springs. 263 located between said burners 19 and the burner platform 51. Other portions of the supplemental actuating means comprises the vertical push rod 269 which supports the arm 267, an operating arm 27% and an actuating cam 271 on the main drive shaft 32 of the machine. The upward movement of the arm 267 associated with the present upward motion of the burners 19 is brought about by the rotation of the intermediate thick portion 272 of the cam 271 to a position below the roller 273 on the operating arm 270 and the consequent motion of said operating arm 270 about a pin 274 extending from the frame 25 which motion is transferred to the push rod 269 through thelink 275. A helical spring 276 extending between a portion of the frame 28 and a pin joining the link 275 and the operating arm 270 causes the operating means to be biased so that the roller 2'73 always rides on the cam 271. A guide 277' extending from another portion of the frame 28 provides the means of holding the push rod 269 in position. The burners 19 are maintained at this intermediate position for a period sufficient to allow the burning hydrogen, which is introduced into the lower ends of the hollow stems 265 thereof by rubber hose 2'18 9 by the extending'from a source (not shown),-to clean the oxide from the ends 104 and adjacent shoulders of the thimbles 5. The following movement of the burners 19 moves them to the full up position shown where said ends 104 and shoulders are within the mouths of the passageways 264 therein and accordingly are out of the oxidizing efiect of the atmosphere. This latter motion of the burners 19 occurs when the arm 267 is moved still further upward by the presence of the thickest portion 279 of the cam 271 below the roller 273 and the expansion force of the springs 268 is free to lift them into engagement with the shoulders of the thimbles 5. -Accelerated cooling of the thimbles occurs under these conditions as said thimbles 5 seat against the burners 19 which are cooled by water circulated through a divided chamber 280 thereabout between the inlet and outlet pipes 281 and 282. The final result of this operation is the cooling of the thimbles 5 to a point where they do not tend to oxidize when the burners 19 are again withdrawn from engage ment therewith. The keying effect of an arm 283 attached to the lower portion of the stem 265 of each burner 19 and having'a forked end in engagement with an adjacent stem 265 prevents rotation of said stem 265 and burner 19 so that the gas connections made by rubber hose 278 and the water connections made between the pipes 281 and 282 and the water supply (not shown) and drain (not shown), respectively, are not subject to injury. At the end of the cycle of operation downward motions of the arm 267 and the burner platform 51 again lower the burners 19 to a position clear of the lamp parts. At station M the next in the order of movement of the head 2, the exhaust tube 20 and the adjacent center portionof the reflector 2 are cooled by jets of air directed thereagainst from openings 284 (Fig. 16) in the legs of the manifold 21 on the frame 28 below said station.

The, next indexing movement of the head 2, in which it is advanced to station N, causes the lead group 10 to be released by the transfer means 9 as the operating lever 93 thereof passes below thedownwardly sloping edge of a stationary cam 285 (corresponding to cam 261 adjacent-station J) on bracket 286 and is forced downward to the full extent of its motion. The greater depth of the cam 285 moves the operating lever 93 to aposition where it locks the intermediate operating arm 238 of the transfer means 9 in the open position so that said means 9 will remain in said open position when the head 2 reaches station N and the operating arm 93 passe beyond the end of the cam 285..

Further cooling of the exhaust tube 20 and the center portion of the reflectorl takes place at station N when 7 jets of air from a second manifold 21 are caused to play on these lamp parts. The upper head portion 6vis also raised clear of the now completed reflector 1 while the head 2 is located at station N, said raising operation being performed by the upward movement of a track segment 287 below the roller 43 on the support rod 42 for said upper head portion 6 and performed in the manner associated with the actuation of track segment 224 (Fig. 6) by means not shown in the present instance and in engagement with the cam shaft 109. No further rearrangement of the operating arm 93 of the transferring means 9 will occur at this time inasmuch as the arm 93 lies beyond the furthest extent of the-cam 285.

The head 2 completes its indexed movement about the machine and a cycle of operation thereof by moving, first, to the unloading station 0 and, then, to the unloading station P. In the course of these indexing movements,

ready access is maintained to the reflector 1 by keeping the upper head portion 6 at its raised position, a position determined by the passage of the roller 43 onthe support rod 42 therefor on to the relatively high end portion of track segment 40 which is at that position coextensive :with the upper position of the track segment 287. As the indexing interval also results in the simultaneous advance of a head 2 to station N and a roller 43 in combination therewith to the position of the track segment 40, the track segment 287 is rapidly returned to its lower position during this interval. The indexing movement of the head 2 between stations N and 0 also carries the operating arm 93 of the transfer means 9 up the inclined top surface of the cam 288 on the bracket 286 at the periphery of the machine so that it is moved up and out of the way. The operation of removing the reflector 1 from the head 2 may occur at either station 0 or P since the upper head portion remains at the raised position because of the higher elevation of the track segment 40 at both of these stations. As previously described, the track segment 40 also extends to stations A and B, the loading stations taken by the head 2 in the course of further indexing movements thereof which advance it into a repeat cycle of operation. ,7

While we have described the preferred embodiment of our invention, we do not wish to be limited to the exact structure shown as it may be understood that many modifications of the precise manner in which the invention is carried into effect as well as in the machine in which it is used may be made without departing from the scope of the appended claims.

What we claim as new and desire to secure by Letters Patent of the United States is:

l.Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in members attached thereto comprising means for presenting preformed leads at a transfer station with offset inner and outer end portions at approximately the proper spaced interrelation to support a filament and to be attached to the metal lead-in members of the reflector section, respectively; a holder for positioning the reflector section accurately at a work station; lead transfer means movable between the transfer and work stations and adapted to grasp the leads by their inner end portions at the transfer station and to position said leads with their inner end portions in accurate predetermined relation to the reflector section and their outer end portions in mounting relation to the metal lead-in members; means operable with respect to the holder for attaching the outer lead portions to the metal lead-in members; and means for operating the time relation i I 2; Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in members attached thereto comprising means for presenting preformed leads at a transfer station with offset inner and outer end portions at approximately the proper spaced interrelation to support a filament and to be attached to the metal-lead-in members of the reflector section, respectively; a head movable to and from a work station and comprised of a holder for accurately positioning the reflector section and lead transfer means movable between the holder and the transfer station, said lead transfer means being adapted to grasp the leads by their inner end portions at the transfer-stalead presenting, transfer and attaching means in proper tion and to position said leads with their'inner end portions in accurate predetermined relation to the reflector section and their outer end portions in mounting relation-to the metal lead-in-members; means operable with respect to the holder for attaching the outer lead portionsto themetal lead-in members; and means for opcrating the lead presenting, transfer'and attaching means in proper time relation to-the movements of the-head.

3. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in members attached thereto comprising means for presenting preformed leads at a transfer station with oflset inner and outer end portions at approxi mately the proper spaced interrelation to support a filament and to be attached to the metal lead-in members of the reflector section, respectively; a plurality of heads, each movable in succession to a plurality of work stations and comprised of a holder for accurately positioning the reflector section and lead transfer means movable to and from the transfer station during the arrangement of the head at one of said work stations and into accurate relation to the holder during the subsequent course of movement of the head, said lead transfer means being adapted to grasp the leads by their inner end portions at the transfer'station and position said leads with their inner end portions in accurate predetermined relation to the reflector section and their outer end portions in mounting relation to the metal lead-in members; means operable-with respect to the holder for attaching the outer lead portions to the metal lead-in members; and means for operating the lead presenting, transfer and attaching means in proper time relation to the movements of the heads.

4. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in members attached thereto comprising means for presenting preformed leads upstanding at a transfer station with ofl'set inner end portions uppermost at approximately the proper spaced interrelation to support a filament and outer end portions lowermost at approximately the positions to be attached to the metal lead-in members of the reflector section; a head movable to and from a work station and comprised of a holder for accurately positioning the reflector section and lead transfer means having a head end provided with apertures for receiving and accurately positioning the inner end portions of the leads and means in combination with the head end for grasping the inner end portions, means for moving the head end downwardly to the transfer station to engage said inner end portions in said apertures and thereafter moving said head end into accurate rela tion to the holder to position said inner end portions in accurate relation to the reflector section; means operable with respect to the holder for attaching the outer lead portions to the metal lead-in members; and means for operating the lead presenting, transfer and attaching means in proper time relation to the movements of the head.

5. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in members attached thereto comprising means for presenting preformed leads upstanding with oilset inner end portions uppermost at approximately the proper spaced interrelation to support a filament and outer end portions lowermost at approximately the positions to be attached to the metal lead-in members of the section; a carrier for advancing the lead preseatin to and from a transfer station; a plurality of heads movable successively to one work station in verti al alignment with the transfer station and to sueceeding work stations, each of said heads comprising a holder for accurately positioning the reflector section with the metal lead-in members lowermost and lead transrd from an accurate relation and adapted to grasp inner end portions of ads; carrier for advancing the head to the work stations with said holder passing below and said transfer means passing a ovethe lead presenting means at the transfer station; means for moving the lead transfer means vertically to lift the leads from said lead presenting means and to subsequently lower said leads to position ,r end portions in accurate predetermined relation reflector section and the outer end portions in 1g relation to the metal lead-in members thereof; 1 operable with respect to the holder for attachin,,' outer lead portions to the metal lead-in members; and means for operating the lead presenting, transfer and attaching means in proper time relation to the movements of the head.

6. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in members attached thereto comprising 22 means for presenting preformed leads upstanding with ofiset inner end portions uppermost at approximately the proper spaced interrelation to support a filament and outer end portions lowermost at approximately the positions to 'be attached to themetal lead-in members of the reflector section; a carrier for advancing the lead presenting means to and from a transfer station; a plurality of heads movable successively to one work station in vertical alignmentwith the transfer station and to succeeding work stations, each of said heads comprising a holder for accurately positioning the reflector section with the metal lead-in members lowermost and lead transfer means movable upward from an accurate relation to the holder and adapted to grasp inner end portions of the leads; a carrier for advancing the head to the work stations with said holder passing below the lead presenting means at the transfer station; stationary track means located below the last-mentioned carrier for supporting the lead transfer means at a vertical position to pass above the lead presenting means at the transfer station, movable track means for reciprocating said lead transfer means vertically to and from the transfer station during the arrangement of the head at said work station to cause said transfer means to lift the leads from said presenting means, means for lowering the said transfer means at a subsequent work station to position the leads with their inner end portions in accurate predetermined relation to the reflector section and their outer end portions in mounting relation to the metal lead-in members thereof; means operable with respect to the holder for attaching the outer lead portions to the metal leadin members; and means for operating the lead presenting, transfer and attaching means in proper time relation to the movements of the head.

7. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in thimbles attached thereto comprising means for presenting preformed leads upstanding with offset inner end portions uppermost at approximately the proper spaced interrelation to support a filament and outer end portions lowermost at positions to be introduced into the open center of the metal lead-in thimbles f the reflector section; a carrier for advancing the lead prsenting means to and from a transfer station; a pluty of heads movable successively to one work station in vertical alignment with the transfer station and to succeeding worn stations, each of said heads comprising a holder for accurately positioning the reflector section with the open ends of the metal lead-in thimbles upperand lead transfer means movable upward from an accurate relation to the holder and adapted to grasp inner end portions of the leads; a carrier for advancing the heads to the work stations having an arrangement to cause the holder of each said head to pass below the lead presenting means at the transfer station; means for moving the lead transfer means vertically during the advance of the head to cause said transfer means to pass above the lead presenting means, to lift the leads therefrom and to subsequently lower said leads to arrange their inner end portions at an accurate predetermined relation to the reflector section and introduce their outer end portions into the metal lead-in thimbles of the reflector section; means located at a work station following said one work station for heating the thimbles to cause fusible material therein to how around the outer end portions or" the leads and attach said portions to said thimbles; and means for operating the lead presenting and lead transfer means in proper time relation to the movements of the head.

8. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group a of metal lead-in thimbles attached thereto comprising means for presenting preformed leads upstanding with ofiset inner end portions uppermost at approximately the proper spaced interrelation to support a filament and outer end portions lowermost at positions to be introduced into the open center of the metal lead-in thimbles of the reflector section; a carrier for advancing the lead pre-' with the open'ends of the metal lead-in thimbles uppermost and lead transfer means movable upward from an accurate relation to the holder and adapted to grasp inner end portions of the leads; a carrier for advancing the heads to the work stations having an arrangement to cause the holder of each said head to pass below the lead presenting means at the transfer station; heating means located at a succession of the work stations for heating the thimbles of the reflector section to cause fusible material therein to be melted; means for moving the lead transfer means vertically during the advance of the head to cause said transfer means to pass above the lead presenting means, to lift the leads therefrom and to subsequently lower said leads to arrange the inner end portions thereof at an accurate predetermined relation to the reflector section and introduce the outer end portions into the fluid fusible material in the thimbles of the reflector section so that said outer ends are attached to said thimbles by said material; and means for operating the lead presenting and lead transfer means in proper time relation to the movement of the head.

9. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in thimbles attached thereto comprising means for presenting preformed leads upstanding with offset inner end portions uppermost at approximately the proper spaced interrelation to support a filament and outer end portions lowermost at positions to be introduced into the open center of the metal lead-in thimbles of the reflector section; a carrier for advancing the lead presenting means to and from a transfer station; a plurality of heads movable successively to one work station in vertical alignment with the transfer station and to succeeding Work stations, each of said heads comprising a holder for accurately positioning the reflector section with the open ends of the metal lead-in thimbles uppermost and lead transfer means movable upward from an accurate relation to the holder and adapted to grasp inner end portions of the leads; a carrier for advancing the heads to the work stations having an arrangement to cause the holder of said head to .pass below the lead presenting means at the transfer station; ring type burners adapted to direct flames toward the center of the opening therein and arranged at the relative positions of the thimbles on the reflector section at a plurality of said work stations; means for moving the burners to and from operative positions about ends of the thimbles to cause fusible material therein to be melted; means for moving the lead transfer means vertically during the advance of the head to cause said transfer means to pass above the lead presenting means, to lift the leads therefrom and to subsequently lower said leads to arrange their inner end portions at an accurate predetermined relation to the reflector section and introduce their outer end portions into the fluid fusible material in the thimbles of the reflector section so that said outer ends'are attached to said thimbles by said material; and means for operating the lead presenting,-lead transfer and burner moving means in proper time relation to the movement of the head.

10. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in thimbles attached thereto comprising means for presenting preformed leads upstanding with offset inner end portions uppermost at approximately the proper spaced interrelation to support a filament and outer end portions lowermost at positions to be introduced into the open center of the metal lead-in thimbles of the reflector section; a carrier for advancing the lead presenting means to and from a transfer station; a plurality of heads movable successively to one Work station in vertical alignment with the transfer station and to succeeding work stations, each of said heads comprising a holder for accurately positioning the reflector section with the open ends of the metal lead-in thimbles uppermost and lead transfer means movable upward from an accurate relation to the holder and adapted to grasp inner end portions of the leads; a carrier for advancing the heads to the work stations having an arrangement to cause the holder of each said head to pass below the lead presenting means at the transfer station; heating means located at a succession of the work stations for heating the thimbles of the reflector section to cause fusible material therein to be melted; means for moving the lead transfer means vertically during the advance of the head to cause said transfer means to pass above the lead presenting means, to lift the leads therefrom and to subsequently lower said leads to arrange their inner end portions at an accurate predetermined relation to the reflector section and introduce their outer end portions into the fluid fusible material in the thimbles of the reflector section; means at a position further along the course of movement of the head for momentarily relaxing the grasp of the transfer means to allow the leads to settle into the fusible material in the thimbles to the greatest possible depth so that said outer ends are finally securely attached to said thimbles when said material solidifies; and means for operating the lead presenting and lead transfer means in proper time relation to the movement of the head.

11. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in thimbles attached thereto comprising means movable to and from a transfer station for presenting preformed leads upstanding with offset inner end portions uppermost at approximately the proper spaced interrelation to support a filament and outer end portions lowermost at positions to be introduced into the open center of the metal lead-in thimbles of the reflector section, a plurality of heads movable successively to a plurality of work stations and comprising a holder for accurately positioning the reflector section with the open ends of the metal lead-in thimbles uppermost and lead transfer means movable between an accurate relation to the holder and the transfer station and adapted to grasp and accurately position inner end portions of the leads; means at one of the first work stations for feeding pellets of a fusible material into the thimbles of the reflector section; heating means located at the first-mentioned and succeeding work stations for heating the thimbles of the reflector section to cause the fusible pellets therein to be melted; means "for moving the transfer means vertically during the advance of the head to cause said transfer means to lift the leads from the presenting means and to subsequently lower said leads to cause the inner end portions thereof to be arranged at an accurate predetermined relation to the reflector section and the outer end portions to be introduced into the fluid fusible material in the thimbles of the reflector section so that said outer end portions are attached to said thimbles by said material; and means for operating the lead presenting, pellet feeding and lead transfer means in proper time relation to the movement of the heads.

12. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in thimbles attached thereto comprising means movable to and from a transfer station for presenting preformed leads upstanding with offset inner end portions uppermost at approximately the proper spaced interrelation to support a filament and outer end portions lowermost at positions to be introduced into the open center of the metal lead-in thimbles of the reflector section, a plurality of heads movable successively to a plurality of work stations and comprising a holder for accurately positioning the reflector section with the open end of the metal lead-in thimbles uppermost, guide tubes extending upwardly of the holder from positions above the thimbles of the reflector section in the holder and lead transfer means movable between an accurate relation to the holder and the transfer station and adapted to grasp and accurately position inner end portions of the leads; means registering with the upper ends of the guide tubes at one of the first work stations for feeding pellets of a fusible material to the thimbles of the reflector section through said guide tubes; heating means located at the first-mentioned and succeeding work stations for heating the thimbles of the reflector section to cause the fusible pellets therein to be melted; means for moving the transfer means vertically during the advance of the head to cause said transfer means to lift the leads from the presenting means and to subsequently lower said leads to cause the inner end portions thereof to be arranged at an accurate predetermined relation to the refiector section and the outer end portions to be introduced into the fluid fusible material in the thimbles thereof so that said outer end portions are attached to said thimbles by said material; and means for operating the lead presenting, pellet feeding and lead transfer means in proper time relation to the movement of the heads.

13. Apparatus for assembling a. filament mount on a reflector section of an incandescent lamp having a group of metal lead-in thimbles attached thereto comprising a holder for accurately positioning the reflector section with the open ends of the metal lead-in thimbles uppermost, lead transfer means adapted to grasp and accurately fix the interrelation of the inner end portions of preformed leads and movable to and from an accurate relation to the holder to cause said inner lead portions to be arranged at an accurate predetermined relation to the reflector section and the opposite outer end portions of the leads to be introduced into the thimbles, and guide tubes extending from within the holder at positions above the thimbles of the reflector section therein to positions above the transfer means for conducting pellets of a fusible material to said thimbles.

14. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in thimbles attached thereto comprising a holder for accurately positioning the reflector section with the open ends of the metal lead-in thimbles uppermost, lead transfer means mounted for movement to and from an accurate relation to the holder comprising a head end provided With apertures at offset positions from the thimbles for receiving and accurately fixing the interrelation of the inner end portions of the leads, means in combination with the head end for grasping said inner end portions and means for moving the head end to cause the inner end portions of leads placed in said head at one position of the head end to be carried to an accurate relation to the reflector section and the; opposite outer ends of said leads to be introduced into the open ends of the-thimbles, and guide tubes extending from within the holder at positions aligned with the thimbles of the reflector section therein to positions above the transfer means and mounted for movement with said transfer means for conducting pellets of a fusible material to said thimbles.

15. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in thimbles attached thereto comprising a holder for accurately positioning the reflector section with the open ends of the metal lead-in thimbles uppermost, lead transfer means mounted for movement to and from an accurate relation to the holder and comprising a head end provided with apertures at offset positions from the thimbles for receiving and accurately fixing the interrelation of the inner end portions of the leads, fingers in combination with the head end of the transfer means for grasping said inner end portions of the leads, operatlog means for the fingers adapted to hold said lingers in either open or closed positions and means for moving the head end to cause the inner end portions of leads placed in said head at one position of the head end to be carried to accurate predetermined relation to the reflector section and the opposite outer ends of said leads to be introduced into the open ends of the thimbles of the reflector section.

16. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in members attached thereto comprising a plurality of heads, each having support means engaging corresponding outer end portions of a group of leads in the proper spaced interrelation for attachment to said metal lead-in members; a carrier for advancing the heads to .a succession of stations including a transfer station; means operating in combination with the heads along the course of movement thereof prior to their arrangement at the transfer station for bending the leads to a position Where the opposite inner end portions thereof are at approximately the proper offset relation to support a filament; a holder for positioning the reflector section accurately at a work station adjacent the transfer station; lead transfer means movable between the transfer and Work stations and adapted to grasp the leads by their inner end portions to disengage them from the head at said transfer station and to position them with their inner end portions in accurate predetermined relation to the reflector section and their outer end portions in mounting relation to the metal lead-in members thereon; means operable with respect to the holder for attaching the outer end portions or" the leads to said metal lead-in members; and means for operating the bending means, carrier, transfer means and attaching means in proper time relation.

17. Apparatus for assembling; a filament. mount on a reflector section of an incandescent lamp having a group of metal lead'in members attached thereto comprising a plurality of heads, each having support means engaging corresponding outer end portions of a group of leads in the proper spaced interrelation for attachment to said metal lead-in members and having means for bending the opposite inner end portions of said leadsto approximately the proper offset relation to support a filament; a carrier for advancing the heads to a succession ofstations including a transfer station; means along the course of movement of the heads prior to their arrangement at the transfer station for operating the bending means thereof; a holder for positioning the reflector section accurately at. a work station adjacent the transfer station; lead transfer means movable between the transfer and Workstations and adapted to grasp the leads by their inner end portions to disengage them from thehead at said transfer station and to position them with their inner end portions in accurate predetermined relation to the reflector section and their outer end portions in mounting relation to the metallead-in members thereon; means operable with respect to the holder for attaching the outer end portions of the leads to said metal lead-in members; and means for operating the bending means, carrier, transfer means and attaching means in proper time relation.

18. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in members attached thereto comprising a plurality of heads, each comprising a die with spaced openings for receiving and holding the outer end portions of leads in the proper spaced interrelation for attachment to said metal lead-in members and with an upstanding portion for defining the position of the inner end portions of said leads and movable die blocks mounted for movement across the openings in the die toward the upstanding portion thereof for causing the extending portions of leads placed in said openings to be bent thereagainst to form the inner ends to approximately the proper offset relation for supporting a filament; a carrier for advancing the heads to a succession of stations including a transfer station; means operating in combination with the heads along theirc ourse of movement prior to their arrangement at the transfer station for effecting movement of the die blocks to effect said bending of the leads; a holder for positioning the reflector section accurately at a work station adjacent the transfer station; lead transfer means movable between the transfer and work stations and adapted to grasp the leads by their inner end portions to disengage them from the head at said transfer station and to position them with their inner end portions in accurate predetermined relation to the reflector section and their outer end portions in mounting relation to the metal lead-in members thereon; means operable with respect to the holder for attaching the outer end portions of the leads to said metal lead-in members; and means for operating the die block moving means, the carrier, the transfer means and the attaching means in proper time relation.

19. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in members attached thereto comprising a plurality of heads, each comprising a die with spaced openings for receiving and holding the outer end portions of leads in the proper spaced interrelation for attachment to said metal lead-in members and with an upstanding portion for defining the position of the inner end portions of said leads and movable die blocks; shaftssupporting the die blocks at eccentric positions on one end thereof for movement across the openings in the die toward the upstanding portion thereof and operating arms on said shafts; a carrier for advancing the heads to a succession of stations including a transfer station, means at one of the first stations and engaging the operating arms of the heads for moving the die blocks to cause the extending portions of the leads to be bent against the upstanding die portion to form the inner ends to approximately the proper offset relation for supporting a filament; a holder for positioning the reflector section accurately at a work station adjacent the transfer station; lead transfer means movable between the transfer and work stations and adapted to grasp the leads by their inner end portions to disengage them from the head at said transfer station and to position them with their inner end portions in accurate predetermined relation to the reflector section and their outer end portions in mounting relation to the metal lead-in members thereon; means operable with respect to the holder for attaching the outer end portions of the leads to said metal lead-in members; and means for operating the die block moving means, the carrier, the transfer means and the attaching means in proper time relation.

20. Apparatus for assembling a filament mount on a reflector section of an incandescent lamp having a group of metal lead-in thimbles attached thereto comprising a plurality of lead bending heads, each having support 28 means adapted to engage the outer end portions of a group of leads in the proper spaced interrelation for attachment to said metal lead-in thimbles and having means for bending the inner end portions of said leads to approximately the proper offset relation to support a filament; a carrier for advancing the lead bending heads to a succession of stations including a transfer station; lead feeding means at one of said stations for inserting leads into said support means; means located at a following station for operating the bending means of the heads; a plurality of reflector holding heads, each comprising a holder for accurately positioning a reflector section with open ends of the metal lead-in thimbles uppermost and lead transfer means movable upward from an accurate relation to the holder and adapted to grasp and hold the inner end portions of the leads in accurate predetermined relation to each other and to the thimbles of the reflector section in said holder; a second carrier for advancing the reflector heads to a plurality of reflector stations including one station vertically aligned below the transfer station; means at one of the first reflector stations for feeding pellets of a fusible material into the thimbles of the reflector section; heating means located at reflector stations including a station following the transfer station for heating the thimbles to melt the fusible pellets therein; means for moving the transfer means vertically during the course of movement of said second carrier to cause said transfer means to lift the leads from the lead bendingheads and to subsequently lower said leads to position their inner end portions in accurate predetermined relation to the reflector section in one of the reflector heads and to'introduce' their outer end portions 7 into the fluid fusible material in the thimbles of said reflector section to enable said end portions to be attached to said thimbles by said material; and means for operating the carriers, the lead and pellet feeding means, the lead bending means and the transfer means in proper time relation.

21. Apparatus as in claim 5 having in combination therewith means for indicating the incomplete downward movement of the lead transfer means following the advance of the head beyond said one station, and comprising means tripped by a portion of said transfer means at its lower limit of movement.

22. Apparatus as in claim 5 having in combination therewith means for arresting the operation of said carriers upon incomplete downward movement of the lead transfer means following the advance of the head beyond said one station, and comprising switch control means tripped by a portion of said transfer means at its lower limit of movement.

' References Cited in the file of this patent UNITED STATES PATENTS 

